A normal highschool teenager that got turned into a uma.

In a world where only female horse girls known as Umamusume exist, a sudden anomaly appears. a male horse also known as Umamusuko. Born with the blood of champions and the heart of a runner, Y/n L/n, the first and only Umamusuko, enter Tracen Academy, a school built to train future legends of the track. With dreams burning brighter than the morning sun, you'll run not just for victory, but for your place in a world that never expected you.

You'd think being an assistant trainer would be an easy job. Waking up, going to the academy, learning from your mentor, and helping him with simple tasks. Yet here we are, having to run away from all sorts of Umas just because I helped them become a better version of themselves each day. I helped them adjust their shoes. Massaged them after the training. Helped them come up with tactics. Was there for them at their lowest and highest. And due to this, let's say that uh... they've become a bit attached to me.

Y/N, not knowing how or even why he got the job in the first place, arrives at Tracen Academy's Tokyo Branch, becoming one of many trainers to help the students chase their dreams of going big Faced with already having no experience in this field, he has to help one that wants to go big even though they know this trainer has no capabilities in doing so

Each team represents the core values of the trainer and their Umamusumes History, anything can come true Rigil - A team that's stacked on historical champions. 7 Crown winner, Symboli Rudolf, 2 Triple Crown Winners, Narita Brian and Daring Tact Now, with Spica on the hopes of winning it with new blood, another team will go even further for the trophy And now, a new team shall take over, a new generation of Umamusumes

"The world is always wrong." After surviving high school with my cynical wit and a complete lack of romantic progress, I-Hikigaya Hachiman was ready to live a peaceful, uneventful life. No youth, no drama, no forced social interaction. That dream came to a crashing halt when I somehow woke up in a world where horse girls-yes, literal girls with horse ears and tails-race professionally while chasing their dreams. And apparently... I'm now their trainer. Me. The guy whose idea of teamwork is "doing everything myself to avoid dealing with people." Special Week smiles at me like I'm her hero. Tokai Teio asks for advice like I have wisdom. Mejiro McQueen demands a training plan like I know what I'm doing. Spoiler: I don't. But every race pulls me deeper. Every tear, every laugh, every finish line crossed... I start to understand these girls. Maybe... just maybe... This world isn't as wrong as I thought. A loner, a realist, and a former Service Club ghost becomes the heart of a new team. This is the story of how I, Hikigaya Hachiman, became the most reluctant-and possibly the most effective-Uma Musume trainer this world has ever seen.